# Payblast

> Payblast validates App Store, Google Play, and Stripe purchases, then unlocks one entitlement on iOS, Android, and the web. Free under $2,000 a month.

Payblast is a billing platform for app makers. One project holds the iOS app, the Android app, and the web paywall. App Store, Google Play, and Stripe products attach to one entitlement. The app checks that entitlement. It does not parse store receipts, and the purchase-success screen does not grant access. Renewals, cancellations, and refunds arrive through App Store Server Notifications, Play Real-time developer notifications, and Stripe webhooks.

Apple and Google bill store purchases. Web purchases use Stripe Checkout on the app maker's connected account. Payblast invoices its own platform fee separately and does not hold end-user funds.

The canonical site is https://payblastfs.com. Use these markdown pages instead of guessing from the HTML. Account pages under /users, project pages under /projects, and /admin and /dev are private.

The REST API is https://payblastfs.com/v1. The app ships the public key. Secret keys stay on the server.

- GET /v1/offerings returns the current offering for the paywall.
- GET /v1/customers/:app_user_id returns the customer and active entitlements.
- POST /v1/customers/:app_user_id/login aliases an app user id.
- POST /v1/checkout starts Stripe Checkout on the app maker's connected account.
- POST /v1/paywall-events records paywall analytics.

Pricing is in US dollars. Monthly tracked revenue is that month's gross before store commission.

- Under $2,000 with one or two apps: $0. No card is required for the first two apps.
- Under $2,000 with three or more apps: $10.
- At $2,000 or more in a month: $10 plus 0.5% of that month's tracked revenue.
- A later month under $2,000 with one or two apps is free again.

Examples on the pricing page: $1,999 and 2 apps is $0. $500 and 5 apps is $10. $2,000 and 1 apps is $20. $10,000 and 2 apps is $60.

SDKs for Swift, Kotlin, React Native, Flutter, Unity, and JavaScript wrap that REST API. Source lives at https://github.com/payblast.

- What is Payblast? Payblast validates App Store, Google Play, and Stripe purchases, unlocks the same entitlement on iOS, Android, and the web, and shows you the revenue.
- Which platforms and SDKs does Payblast support? iOS, Android, and the web. SDKs for Swift, Kotlin, React Native, Flutter, Unity, and JavaScript wrap a small REST API you can also call directly.
- How much does Payblast cost? One or two apps are free while monthly tracked revenue stays under $2,000. A third app adds a $10 base fee. At $2,000 or more in a month, the invoice is $10 plus 0.5% of that month's tracked revenue. A quiet month with one or two apps drops back to free.
- Does Payblast hold my customers' money? No. Apple and Google bill store purchases. Web purchases use Stripe Checkout on the app maker's connected account. Payblast invoices its own platform fee separately and does not hold end-user funds.

## Docs

- [Payblast](https://payblastfs.com/index.md): Product overview, pricing, REST API, and the apps already using it.
- [Case studies](https://payblastfs.com/blog/index.md): How production apps sell subscriptions with Payblast.
- [Catalan Verbs](https://payblastfs.com/blog/catalan-verbs/index.md): Monthly, yearly, and lifetime access on the App Store and Google Play, unlocked by one entitlement.

## Optional

- [Create an account](https://payblastfs.com/users/register): Email or Google sign-up. Free while the plan above is $0.
- [Log in](https://payblastfs.com/users/log-in): Account sign-in. Not a product document.
- [SDK source](https://github.com/payblast): Public client repositories.
- [Catalan Verbs on the App Store](https://apps.apple.com/es/app/catalan-verbs/id6738144158): Store listing for the education app.
- [Catalan Verbs on Google Play](https://play.google.com/store/apps/details?id=co.bitscorp.cat): Store listing for the education app.
- [Pushup Challenges on the App Store](https://apps.apple.com/us/app/pushup-challenges/id6450053262): Store listing for the fitness app.
- [Pushup Challenges on Google Play](https://play.google.com/store/apps/details?id=co.bitscorp.pushup): Store listing for the fitness app.